Concrete anchor or insert



APPLICATION FILED MAY 2?, I916.

Patented Sept. 7, 1920.

ATTORNEYS era CHARLES J. BRANCH, or PHILADELPHIA, PENNSYLVANI coNoRnr ANoHoR 'oarNsim'r, 1

To all whom it may concern: j 3

. Be; it knownthatI, CHARLES J, BRANoH, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Concrete Anchor or Insert, of the following is a specification. p i, l My nvention relates to a novel construc t1on of a concrete anchor or 1nsert,-wh1ch 1s adapted to be readily and convenientlysup-Y ported and surrounded with concrete and is constructed with upright and downwardly converging walls collocated in such a manner that a conical internal nutchamber is provided into which standard nuts of different sizes may be inserted, turned and then in-' verted into a horizontal position, so as to be securely retained in the desired position and prevented from rotation during the screwing of'a boltinto the nut,means being this provided for the ready disengagement of the bolt from the nut and also for enabling "the nut to be. readily removed from the nut chamber or nuts of varying sizes 'to be inserted and withdrawn from said. nut chamber according to requirements. i

For the purpose of-illustrating my invention, I have shown in the accompanying drawings one form thereof which is at present preferred by me, since the same will give inpractice satisfactory and reliable results, although it is to be understood that the vari; ous instrumentalities of which my invention consists can be variously arranged and organized and that my invention is'not limited to the precise arrangement and organization of these instrumentalities as herein shown and described. p o "Figure 1 represents a perspective view of a concrete anchor or insert embodying my invention. l Fig. 2 represents a section on line 2- 2 Fig... 'I Fig. 3 represents a sectional viewsimilar toFig. 2, showing a nut in the act of being inserted endwise'into position within the nut chamber f V 4 represents a sectional view similar to Fig. 2, but showing "in elevation the nut turned from the position seen in F 1g; 3 and wardly so that an open mouth 5 of the nut'chainber" 11' contained within the p fie m f L t B "Patented Sept. 7,1920; ApplicationfiledMayj27, 1916. Serial No 100,173. I i

Fig, fi representsa section on line 6 6f Fig. .7 represents a bottom plan view of bimilar numerals of reference indicate." corresponding parts in the figures. Referring to the drawings V 1 designates the Wedge or similar shaped body or box of my novel concrete anchor or insert, the same comprising thetop 2, having the substantially parallel side walls 3 and the end walls 4, which converge. down;

of greater length than width is formed at the bottom of the body, the latter having. the flanges 6 projecting oppositely therefrom,

a said flanges being provided with slots 7, for

the reception of suitable fastening devices, whereby thean'chor or" insert can be conveniently secured in the desired position to a suitable support.

8 designates a standard nut, which is preferably square and is adapted to be inserted in the open mouth or opening 5, asseen in Fig. 3,'it being. apparent that thewidth of said mouth, while slightly greater than the thickness of the nut 8, is so proportioned that itis narrower than the breadth of said nut, so that when the latter is turned into the position seen in, Figs. 4c and 5, which can be readily done by turning the nut in the direction of the arrow at seenjin Fig. 3, the nut readily assumes a horizontal position and 1s prevented from rotation by the contact of its edges .9 with thecontiguous innerwalls 10 body 1, as will be apparent from Fig. 6.

.The relative proportionsvof the mouth 5 with respect to the nut 8, will be understood fromfFig 6, and 1 preferably employ a 95 standard, square nut, as being-best'adapted to coact with the internal walls of the nut chamber 11, although other shapes'of nuts may be employed. Thenut 8 having been inserted into place as described with respect 100 to Figs. and 4, the bolt-12 can be readily screwed-into position, as will be understood from Figs. 4, 5 and .6, said bolt-havin the eye or opening 13 therein, for the reception I preferably employ the flanges 14,which project'laterally from the top 2 of the body 1, which is adapted to be inserted in or surrounded by the body of concrete 15.

TI I

preferably I f rods, bars, hooksfor the like, which may be employed in building construction.

It will be seen from the foregoing that by reason of the downward convergence of the end walls/t of the, wedge or similar shaped body 1, the anchor or insertis prevented from dislodgment with respect; to. the sur;

rounding concrete, and by the employment of the flanges H and 6, additional laterally extending anchoring elements are provlded,

which will hold the anchor or insert rig-'- idly in position after beingfurrounded with concrete, as is evident. y reason of the contour of the nut chamber 11, it will be apparent that the nut 8, after having been initially inserted endwise into position in the manner indicated in Fig. 3 and then turned into the horizontal positionjseen inFigs. 4L,

' 5 and 6, is prevented from turning, while the bolt 12 is screwed thereinto and in addition a large size nut and coacting bolt, as indicated in Fig. l, or'a smaller size nut and bolt, as indicated in Fig. 5, can be, readily employed within or in conjunction with the I same standard sized anchor or insert body.

By theemployment of the slotted flanges 6, I am enabled to conveniently secure the anchor or insert in any desired position upon a suitable support.

My novel anchor or insert can be cheaply manufactured, is not liable to get out of "order and affords a ready and convenient means for enabling bolts 12 of different sizes to be supported atthe desired point, as will be apparent to those skilled in the art.

It will be understood that if desired the flanges let can be omitted and that the contour of the flange 6 can be changed, according to requirements. While I have shown the bolt 12 as provided with an eye l3.therein, it will be understood that any other kind of a bolt or suspension device having a forged head'or the like can be employed in lieu of the bolt 12.

If desired, I may employ a pipe or rod in lieu of the bolt 12, in conjunction with the nut 8, .the latter being suitably tapped for the reception of the upper e'nd'of the pipe, rod or the like. g Y

I desire to call special attention to the factthat in all the embodiments of my device, as seen in Figs. 4 and 5, the edge 9 of the nut, which may be square or other shape, r'estsdirectly' upon theinner wall 10 and not upon" inwardly projecting flanges or lugs located at or near the mouth 6, as has heretofore been the practice. Y

By my construction seen in Figs. l'and 5, wherein I support the nut directly upon the v juxtaposed downwardly converging walls, it will be seen that the pull upon the nut caused by the load which may be ex-- erted upon theinner walls 10 will be in every case resisted by the bed of concrete surrounding the anchor or insert, so that a very heavy load can be supported from the 'nut 8 without injuring or distorting the tioe satisfactory and reliable results, it is tages.

body-of the anchor orinsert, since the strain of the load being against the concrete at the sidesof the insert insures increased carrying strength.

.It will be apparent from the foregoing 7 that it is impossible to pull the anchor or insert out of the concrete 15.

It will also be apparent that while I have shown the walls 3 as being upright or substantially parallel, the contour of said walls can be changed, if desired.

It will now be apparent that I have deviseda novel and useful "concrete anchor or insert, which embodies the features of advantage enumerated as desirable in' the statement of the invention and theabove description, and while Ihave,[in the present instance, shown and described a preferred embodiment thereof which will give in Ipractilinear side walls, oppositely located rectilinear end walls converging downwardly from said top so as to form an angular nut 1'00 chamber between said walls, whose internal area increases'upwardly and is greatest at its top, oppositely located top anchoring flanges forming a continuation of said top and overhanging said closed vertical walls, slotted bottom anchoring flanges projecting laterally from the bottom of said vertical flanges, an open mouth in the bottom ofsaid body of greater length than width, the

longest dimension of'said mouth extending at a right angle to said'vertical side walls, and a standard nut inserted endwise therein, said nut when turned into a horizontal position being supported upon said inner converging walls at a point above said I15 mouth. I

2. In a device of the character stated, a wedge-shaped anchor or insert, comprising a closed body portion having a closed top member provided with parallel vertical rectilinear side walls, oppositely located rectilinear end walls convergingdownwardly from the top so as .to form an angular: nut chamber between said walls whose int'ernal area is greatest at its top, oppositely located top anchoring flanges forming a continua .tion of said top andpVerhanging said vertical walls, slotted bottom anchoring flanges projecting from the bottom 'ofsaidvertical flanges and an open mouth in the bottom of said body of greater length than Width,

the longest dimension of said mouth extending at a right angle to said Vertical side Walls, in combination with a standard nut inserted endwise therein, said nut when turned into a horizontal position, being supported upon said inner converging Walls at a point above said mouth and (a bolt sup-.

ported by and in engagement With said nut,

and having an eye in its lower end.

CHARLES J BRANCH.

Witnesses: 1 t

E. HAYWARD FAIRBANKS, C. D. 'M VAY. 

